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1 | /* |
1 | /* |
2 | * Copyright (C) 2005 Jakub Jermar |
2 | * Copyright (C) 2005 Jakub Jermar |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** @addtogroup ia64 |
29 | /** @addtogroup ia64 |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** @file |
32 | /** @file |
33 | */ |
33 | */ |
34 | 34 | ||
35 | #include <arch.h> |
35 | #include <arch.h> |
36 | #include <arch/ski/ski.h> |
36 | #include <arch/ski/ski.h> |
37 | #include <arch/drivers/it.h> |
37 | #include <arch/drivers/it.h> |
38 | #include <arch/interrupt.h> |
38 | #include <arch/interrupt.h> |
39 | #include <arch/barrier.h> |
39 | #include <arch/barrier.h> |
40 | #include <arch/asm.h> |
40 | #include <arch/asm.h> |
41 | #include <arch/register.h> |
41 | #include <arch/register.h> |
42 | #include <arch/types.h> |
42 | #include <arch/types.h> |
43 | #include <arch/context.h> |
43 | #include <arch/context.h> |
44 | #include <arch/stack.h> |
44 | #include <arch/stack.h> |
45 | #include <arch/mm/page.h> |
45 | #include <arch/mm/page.h> |
46 | #include <mm/as.h> |
46 | #include <mm/as.h> |
47 | #include <config.h> |
47 | #include <config.h> |
48 | #include <userspace.h> |
48 | #include <userspace.h> |
49 | #include <console/console.h> |
49 | #include <console/console.h> |
50 | #include <proc/uarg.h> |
50 | #include <proc/uarg.h> |
51 | #include <syscall/syscall.h> |
51 | #include <syscall/syscall.h> |
52 | #include <ddi/irq.h> |
52 | #include <ddi/irq.h> |
53 | 53 | ||
54 | void arch_pre_main(void) |
54 | void arch_pre_main(void) |
55 | { |
55 | { |
56 | /* Setup usermode init tasks. */ |
56 | /* Setup usermode init tasks. */ |
57 | init.cnt = 8; |
57 | init.cnt = 8; |
58 | init.tasks[0].addr = INIT0_ADDRESS; |
58 | init.tasks[0].addr = INIT0_ADDRESS; |
59 | init.tasks[0].size = INIT0_SIZE; |
59 | init.tasks[0].size = INIT0_SIZE; |
60 | init.tasks[1].addr = INIT0_ADDRESS + 0x400000; |
60 | init.tasks[1].addr = INIT0_ADDRESS + 0x400000; |
61 | init.tasks[1].size = INIT0_SIZE; |
61 | init.tasks[1].size = INIT0_SIZE; |
62 | init.tasks[2].addr = INIT0_ADDRESS + 0x800000; |
62 | init.tasks[2].addr = INIT0_ADDRESS + 0x800000; |
63 | init.tasks[2].size = INIT0_SIZE; |
63 | init.tasks[2].size = INIT0_SIZE; |
64 | init.tasks[3].addr = INIT0_ADDRESS + 0xc00000; |
64 | init.tasks[3].addr = INIT0_ADDRESS + 0xc00000; |
65 | init.tasks[3].size = INIT0_SIZE; |
65 | init.tasks[3].size = INIT0_SIZE; |
66 | init.tasks[4].addr = INIT0_ADDRESS + 0x1000000; |
66 | init.tasks[4].addr = INIT0_ADDRESS + 0x1000000; |
67 | init.tasks[4].size = INIT0_SIZE; |
67 | init.tasks[4].size = INIT0_SIZE; |
68 | init.tasks[5].addr = INIT0_ADDRESS + 0x1400000; |
68 | init.tasks[5].addr = INIT0_ADDRESS + 0x1400000; |
69 | init.tasks[5].size = INIT0_SIZE; |
69 | init.tasks[5].size = INIT0_SIZE; |
70 | init.tasks[6].addr = INIT0_ADDRESS + 0x1800000; |
70 | init.tasks[6].addr = INIT0_ADDRESS + 0x1800000; |
71 | init.tasks[6].size = INIT0_SIZE; |
71 | init.tasks[6].size = INIT0_SIZE; |
72 | init.tasks[7].addr = INIT0_ADDRESS + 0x1c00000; |
72 | init.tasks[7].addr = INIT0_ADDRESS + 0x1c00000; |
73 | init.tasks[7].size = INIT0_SIZE; |
73 | init.tasks[7].size = INIT0_SIZE; |
74 | } |
74 | } |
75 | 75 | ||
76 | void arch_pre_mm_init(void) |
76 | void arch_pre_mm_init(void) |
77 | { |
77 | { |
78 | /* Set Interruption Vector Address (i.e. location of interruption vector table). */ |
78 | /* Set Interruption Vector Address (i.e. location of interruption vector table). */ |
79 | iva_write((uintptr_t) &ivt); |
79 | iva_write((uintptr_t) &ivt); |
80 | srlz_d(); |
80 | srlz_d(); |
81 | 81 | ||
82 | } |
82 | } |
83 | 83 | ||
84 | void arch_post_mm_init(void) |
84 | void arch_post_mm_init(void) |
85 | { |
85 | { |
86 | irq_init(INR_COUNT, INR_COUNT); |
86 | irq_init(INR_COUNT, INR_COUNT); |
87 | ski_init_console(); |
87 | ski_init_console(); |
88 | it_init(); |
88 | it_init(); |
89 | ski_set_console_sysinfo(); |
- | |
90 | } |
89 | } |
91 | 90 | ||
92 | void arch_post_cpu_init(void) |
91 | void arch_post_cpu_init(void) |
93 | { |
92 | { |
94 | } |
93 | } |
95 | 94 | ||
96 | void arch_pre_smp_init(void) |
95 | void arch_pre_smp_init(void) |
97 | { |
96 | { |
98 | } |
97 | } |
99 | 98 | ||
100 | void arch_post_smp_init(void) |
99 | void arch_post_smp_init(void) |
101 | { |
100 | { |
- | 101 | thread_t *t; |
|
- | 102 | ||
- | 103 | if (config.cpu_active == 1) { |
|
- | 104 | /* |
|
- | 105 | * Create thread that polls keyboard. |
|
- | 106 | */ |
|
- | 107 | t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll"); |
|
- | 108 | if (!t) |
|
- | 109 | panic("cannot create kkbdpoll\n"); |
|
- | 110 | thread_ready(t); |
|
- | 111 | } |
|
102 | } |
112 | } |
103 | 113 | ||
104 | /** Enter userspace and never return. */ |
114 | /** Enter userspace and never return. */ |
105 | void userspace(uspace_arg_t *kernel_uarg) |
115 | void userspace(uspace_arg_t *kernel_uarg) |
106 | { |
116 | { |
107 | psr_t psr; |
117 | psr_t psr; |
108 | rsc_t rsc; |
118 | rsc_t rsc; |
109 | 119 | ||
110 | psr.value = psr_read(); |
120 | psr.value = psr_read(); |
111 | psr.cpl = PL_USER; |
121 | psr.cpl = PL_USER; |
112 | psr.i = true; /* start with interrupts enabled */ |
122 | psr.i = true; /* start with interrupts enabled */ |
113 | psr.ic = true; |
123 | psr.ic = true; |
114 | psr.ri = 0; /* start with instruction #0 */ |
124 | psr.ri = 0; /* start with instruction #0 */ |
115 | psr.bn = 1; /* start in bank 0 */ |
125 | psr.bn = 1; /* start in bank 0 */ |
116 | 126 | ||
117 | __asm__ volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value)); |
127 | __asm__ volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value)); |
118 | rsc.loadrs = 0; |
128 | rsc.loadrs = 0; |
119 | rsc.be = false; |
129 | rsc.be = false; |
120 | rsc.pl = PL_USER; |
130 | rsc.pl = PL_USER; |
121 | rsc.mode = 3; /* eager mode */ |
131 | rsc.mode = 3; /* eager mode */ |
122 | 132 | ||
123 | switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry, |
133 | switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry, |
124 | ((uintptr_t) kernel_uarg->uspace_stack)+PAGE_SIZE-ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT), |
134 | ((uintptr_t) kernel_uarg->uspace_stack)+PAGE_SIZE-ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT), |
125 | ((uintptr_t) kernel_uarg->uspace_stack)+PAGE_SIZE, |
135 | ((uintptr_t) kernel_uarg->uspace_stack)+PAGE_SIZE, |
126 | (uintptr_t) kernel_uarg->uspace_uarg, |
136 | (uintptr_t) kernel_uarg->uspace_uarg, |
127 | psr.value, rsc.value); |
137 | psr.value, rsc.value); |
128 | 138 | ||
129 | while (1) { |
139 | while (1) { |
130 | ; |
140 | ; |
131 | } |
141 | } |
132 | } |
142 | } |
133 | 143 | ||
134 | /** Set thread-local-storage pointer. |
144 | /** Set thread-local-storage pointer. |
135 | * |
145 | * |
136 | * We use r13 (a.k.a. tp) for this purpose. |
146 | * We use r13 (a.k.a. tp) for this purpose. |
137 | */ |
147 | */ |
138 | unative_t sys_tls_set(unative_t addr) |
148 | unative_t sys_tls_set(unative_t addr) |
139 | { |
149 | { |
140 | return 0; |
150 | return 0; |
141 | } |
151 | } |
142 | 152 | ||
143 | /** Acquire console back for kernel |
153 | /** Acquire console back for kernel |
144 | * |
154 | * |
145 | */ |
155 | */ |
146 | void arch_grab_console(void) |
156 | void arch_grab_console(void) |
147 | { |
157 | { |
148 | ski_kbd_grab(); |
158 | ski_kbd_grab(); |
149 | } |
159 | } |
150 | /** Return console to userspace |
160 | /** Return console to userspace |
151 | * |
161 | * |
152 | */ |
162 | */ |
153 | void arch_release_console(void) |
163 | void arch_release_console(void) |
154 | { |
164 | { |
155 | ski_kbd_release(); |
165 | ski_kbd_release(); |
156 | } |
166 | } |
157 | 167 | ||
158 | /** @} |
168 | /** @} |
159 | */ |
169 | */ |
160 | 170 |